48 SINGLE MODE (OPGW) GROUNDWIRE COMPOSITE,OPTICAL FIBRE CABLE;CENTRAL CORE WITHIN A PROTECTIVE TUBE;CABLE DIA 14.5 MM;LEFT HAND LAY;FAULT LEVELS 0.5 SEC,14.85 KA, 1.0 SEC, 10.7 KA; CALCULATED BREAKING LOAD 65.4 KN; ACTUAL BREAKING LOAD > 65.4 KN; DRUM SIZE 3000M,DRUM WEIGHT 1619KG, DRUM SIZE 4000M,DRUM WEIGHT 2122KG,